OVERVIEW 24 push buttons, 1 rotary volume knob and a numeric pad for data entry; large classic LCD orange backlit display with 40 x 2 lines with strange clock and calendar functions :)
>Test program: press and hold "EXIT" + "STORE" + "EFFECT"
RELATED: 4OP synth exemples:
-DX9 (1983) first 4 OP incompatible with other 4 Op DX line
-DX21 (1985) bitimbric layer with chorus and pitch EG
-DX100 (1985) same as dx21 with minikeys
-DX27 (1985) simpler DX 21 version - also a "S" varitation with internal speakers
-Fb01 (1986) simple 4OP module- also TQ5
-DX11 (1986) a Tx81z version with 8 waves
-YS200 (1988) consumer 4 OP version with sequence
-V50 (1989) top 4 OP series with sequencer + drum machine
-MSX CX5M (1984) computer with 4 OP SFG module
1- headphones out
2- main stereo signal out L+ R
3- Midi interface
4- PSU input 15 VDC positive center (original is model PA-1505)
5- Power switch
SYNTHESIS 4 digital sinewave operators - OP - organized as algorithms, assigned as either carrier or modulator, linked between them on different pathways interacting on their harmonic contents depending on the varable feedback strength.
- carrier defines the amplitude and the spectral frequency
- modulator sets the sound timbre and the relative harmonic contents.
ALGORITHMS TQ5 features several OP signalpaths combinations with frequency ratio or fixed frequency: the output is fed back to its input with 7 feedback levels, as general rule, high values feedback results in richer harmonic contents.
>NOTE: the processor design reveals some limits and cannot layer some particular algorithm combinations.
MEMORY Sounds, songs can be saved to Midi exclusives or to internal RAM CARD model MCD-32 (bigger MCD-64 are compatible, but wasted)
100 ROM patches (preset list) + 100 RAM patches. BATTERY REPLACEMENT involves soldering a new lithium 3V CR-2032 on the mainboard.
LFO up to 2 delayed and retriggerable modulators (shapes: sawtooth, square, triangle and sample & hold) frequency range from 0.007 Hz to 50 Hz).
LFO1 to amplitude and LFO2 to pitch.
ENVELOPE: 4 EGs: each OP features 1 amplitude EG (4-segments)
SEQUENCER manages up to 8 tracks, 10,000 notes / 8 songs / 999 bar with some presets accompaniment styles: piano, pops, fusion, rock, jazz, latin, classic. Time signature can be assigned to 1/4, 4/4, 1/8, 8/8, up to 999 measures. Some classic functions like quantisize (from 1/48 up to 1/4 notes) , copy, cancel, insert.
SYNC: internal tempo range from 60 to 180 BPM or sync-clock to external Midi signal